Before Esperanza Spalding triumphed at the Grammys last year, she appearing at the Kennedy Center, the Lincoln Theater and the White House. The bassist-vocalist-composer also performed at the Nobel Peace Prize ceremony in 2009, at the invitation of President Obama, and at the Oscars. RADIO MUSIC SOCIETY, her new concept album, indicates that Spalding won’t be suffering a career reversal anytime soon. Young, gifted and backed by an impressive array of pop, jazz and hip-hop talent, as well as some of her early mentors, the 27-year-old native of Portland.